/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            debug.cc
 *
 *  Tue Aug 17 10:48:45 CEST 2010
 *  Copyright 2010 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "debug.h"

#include <QDialog>
#include <QListWidget>
#include <QVBoxLayout>
#include <QCloseEvent>
#include <QSettings>

static const char * const class_str[] =
  { "debug", "error", "warn", "log" };

class DebugWindow : public QDialog {
public:
  DebugWindow();

  void log(const char *func, const char *file, const int line,
           debug_class cl, const char *ch, QString &msg);
protected:
  void closeEvent(QCloseEvent *event);

private:
  QListWidget *lst;
};

DebugWindow::DebugWindow()
{
  setLayout(new QVBoxLayout());
  lst = new QListWidget();
  layout()->addWidget(lst);

  QSettings settings("Aasimon.org", "Pracro");
  settings.beginGroup("DebugWindow");
  resize(settings.value("size", QSize(700, 800)).toSize());
  move(settings.value("pos", QPoint(0, 0)).toPoint());
  settings.endGroup();
}

void DebugWindow::closeEvent(QCloseEvent *event)
{
  QSettings settings("Aasimon.org", "Pracro");
  settings.beginGroup("DebugWindow");
  settings.setValue("size", size());
  settings.setValue("pos", pos());
  settings.endGroup();
  event->accept();
}

void DebugWindow::log(const char *func, const char *file, const int line,
                      debug_class cl, const char *ch, QString &msg)
{
  // Remove trailing newlines.
  while(msg.endsWith("\n")) msg = msg.left(msg.length() - 1);

  QString txt;
  txt.sprintf("[%s] %s %s:%s:%d ",
              class_str[(unsigned)cl], ch, file, func, line);
  txt += " : " + msg;

  QListWidgetItem *item = new QListWidgetItem();
  item->setText(txt);
  if(cl == _error) item->setBackground(QBrush(QColor(230, 200, 200)));
  if(cl == _warn) item->setBackground(QBrush(QColor(200, 200, 230)));
  if(cl == _log) item->setBackground(QBrush(QColor(200, 230, 200)));

  lst->addItem(item);
  lst->scrollToItem(item);
}


static DebugWindow* debugwindow = NULL;

void dbg_init()
{
  if(debugwindow) dbg_free();
  debugwindow = new DebugWindow();
}

void dbg_free()
{
  if(debugwindow) delete debugwindow;
  debugwindow = NULL;
}

void dbg_show()
{
  if(debugwindow) debugwindow->show();
}

void dbg_toggle()
{
  if(debugwindow) {
    if(debugwindow->isVisible()) dbg_hide();
    else dbg_show();
  }
}

void dbg_hide()
{
  if(debugwindow) debugwindow->hide();
}

void dbg_log(const char *func, const char *file, const int line,
             debug_class cl, const char *ch, const char *fmt, ...)
{
  if(debugwindow) {
    QString msg;

    va_list va;
    va_start(va, fmt);
    msg.vsprintf(fmt, va);
    va_end(va);

    debugwindow->log(func, file, line, cl, ch, msg);
  } else {
    fprintf(stderr, "[%s] %s %s:%s:%d ",
            class_str[(unsigned)cl], ch, file, func, line);
    va_list va;
    va_start(va, fmt);
    vfprintf(stderr, fmt, va);
    va_end(va);
  }
}


#ifdef TEST_DEBUG
//Additional dependency files
//deps:
//Required cflags (autoconf vars may be used)
//cflags:
//Required link options (autoconf vars may be used)
//libs:
#include "test.h"

TEST_BEGIN;

// TODO: Put some testcode here (see test.h for usable macros).

TEST_END;

#endif/*TEST_DEBUG*/